粉煤灰對超輕泡沫混凝土性能的影響試驗(yàn)研究
Experimental Study on the Influence of Fly Ash on the Performance of Ultra Light Foam Concrete

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Experimental Study on the Influence of Fly Ash on the Performance of UItra Light Foam Concrete
(1.楊凌職業(yè)技術(shù)學(xué)院,楊凌712100;2.楊凌工業(yè)園區(qū)投資創(chuàng)業(yè)服務(wù)有限公司,楊凌712100)
中圖分類號:TU528 文獻(xiàn)標(biāo)志碼:A 文章編號:1005-8249(2025)01-0029-05
DOI:10.19860/j.cnki.issn1005-8249.2025.01.006
LI Guorong',LIU Yuzhi2
(1. Yangling Voactional & Technical College, Yangling 7121OO,China ;
1. Yangling Industrial Park Investment Venture Service Co.,Ltd.,Yangling 7121O0,China)
Abstract:Inordertoefectivelyreducethematerialcostofultralightfoamconcrete,threediferentgradesoflyash,GradeI, Grade and Grade $\mathbb{I l}$ ,were used to replace the high belite sulphoaluminate cement in ultra light foam concrete equally,and thephysicalandmechanicalpropertiesofdiferentgradesofflyashunderdiferenreplacementratesofaltralightfoamconcrete weretested.Theresultsshowthat theaditionofflyashcanfurtherreducethedrydensityandthermalconductivityofultralight foamconcrete,playingagodroleinweightreductionand heatinsulation,reduce thestrengthof ultralightfoamconcrete, while increasing the shrinkage deformation;When Grade II flyash is used and the substitution rate is 15% ,the mechanical propertiesofultralightfoamconcretearebeter,withdrydensity,specificstrength,thermal conductivity,tensilebond strength and 28 day shrinkage values of , 1276.6N?m/kg , 0.0791W/m?k ,0.128 MPa and 2.93 mm/m. Key words:ultralight foam concrete;high belite sulphoaluminate cement;fly ash;substitution rate
0 引言
建筑領(lǐng)域的能源消耗占到了總能源消耗的 40% 以上,尤其是混凝土和紅磚的生產(chǎn)消耗了大量的不可再生資源,而且傳統(tǒng)混凝土和紅磚并沒有起到良好的保溫隔熱效果,在此背景下,有必要推行節(jié)能建材和新型墻體材料[1]
聚苯乙烯板、聚氨酯發(fā)泡保溫制品、擠塑聚苯板、礦棉、玻璃棉等有機(jī)材料均具有良好的保溫隔熱效果[2-5],但是也存在易燃燒、燃燒后釋放有毒氣體、成本高、原材料來源有限等缺點(diǎn),因而傳統(tǒng)保
材料科學(xué)
溫材料的發(fā)展和推廣受到一定的限制。(剩余10388字)